Great inner ring made of pink mesh from Bering in stainless steel. The great twist & change system means that the rings can be recombined again and again. The outer ring is the base and can be unscrewed. This allows you to remove the inner rings and replace them as you wish. Please note that the outer ring and the inner ring must be different sizes. For example, if the outer ring is size 55, the inner ring must be two sizes larger (size 60). Inner ring Bering size: 6 corresponds to size 57, 7 corresponds to size 60, 8 corresponds to size 63, 9 corresponds to size 65, 10 corresponds to size 68